Package g0301_0400.s0367_valid_perfect_square

Class Solution

java.lang.Object

g0301_0400.s0367_valid_perfect_square.Solution

public class Solution
extends Object

367 - Valid Perfect Square.<p>Easy</p> <p>Given a <strong>positive</strong> integer <em>num</em>, write a function which returns True if <em>num</em> is a perfect square else False.</p> <p><strong>Follow up:</strong> <strong>Do not</strong> use any built-in library function such as <code>sqrt</code>.</p> <p><strong>Example 1:</strong></p> <p><strong>Input:</strong> num = 16</p> <p><strong>Output:</strong> true</p> <p><strong>Example 2:</strong></p> <p><strong>Input:</strong> num = 14</p> <p><strong>Output:</strong> false</p> <p><strong>Constraints:</strong></p> <ul> <li><code>1 <= num <= 2^31 - 1</code></li> </ul>

Constructor Summary

Constructors

Constructor	Description
Solution()

Method Summary

Modifier and Type	Method	Description
boolean	isPerfectSquare(int num)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

Solution

public Solution()

Method Details

isPerfectSquare

public boolean isPerfectSquare(int num)